Audi q4 problems
 

I have a AUDI Q4 2014 since December 2015.....I was in the middle of traffic and it just shut off.....steering wheel locked.....couldn't push down on brakes......good thing I was waiting to drive....as I took my foot off of the brakes that's when realize I had problems......couldn't put car in park....nothing seems to work.....I took the kettle from the remote out and put It back in.....it started up in 5 seconds....I've reached my destination safely....the next day I went to get a battery...it shut off again...after changing battery....returned home......yes....it shut off once again......the lighter stopped working so I can't change my cellphone..NOT GOOD.....Out in Hempstead, L.I...Looking for a AUDI Dealership....any suggestions